Ensure that if appcache is disabled for a page that navigation requests don't use it.

content/browser/frame_host/navigation_request.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/frame_host/navigation_request.h"
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "content/browser/appcache/appcache_navigation_handle.h"
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/devtools/render_frame_devtools_agent_host.h"
 #include "content/browser/frame_host/debug_urls.h"
 #include "content/browser/frame_host/frame_tree.h"
 #include "content/browser/frame_host/frame_tree_node.h"
 #include "content/browser/frame_host/navigation_controller_impl.h"
 #include "content/browser/frame_host/navigation_handle_impl.h"
 #include "content/browser/frame_host/navigation_request_info.h"
 #include "content/browser/frame_host/navigator.h"
 #include "content/browser/frame_host/navigator_impl.h"
+#include "content/browser/frame_host/render_frame_host_impl.h"
 #include "content/browser/loader/navigation_url_loader.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/service_worker/service_worker_context_wrapper.h"
 #include "content/browser/service_worker/service_worker_navigation_handle.h"
 #include "content/browser/site_instance_impl.h"
 #include "content/common/appcache_interfaces.h"
 #include "content/common/resource_request_body_impl.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/global_request_id.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_data.h"
 #include "content/public/browser/navigation_ui_data.h"
+#include "content/public/browser/render_view_host.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/browser/stream_handle.h"
 #include "content/public/common/appcache_info.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/origin_util.h"
 #include "content/public/common/request_context_type.h"
 #include "content/public/common/resource_response.h"
 #include "content/public/common/url_constants.h"
+#include "content/public/common/web_preferences.h"
 #include "net/base/load_flags.h"
 #include "net/base/net_errors.h"
 #include "net/base/url_util.h"
 #include "net/http/http_request_headers.h"
 #include "net/url_request/redirect_info.h"
 #include "third_party/WebKit/public/platform/WebMixedContentContextType.h"
 #include "third_party/WebKit/public/web/WebSandboxFlags.h"
 
 namespace content {
 
@@ skipping 601 matching lines @@
        blink::WebSandboxFlags::Origin) != blink::WebSandboxFlags::Origin;
   request_params_.should_create_service_worker = can_create_service_worker;
   if (can_create_service_worker) {
     ServiceWorkerContextWrapper* service_worker_context =
         static_cast<ServiceWorkerContextWrapper*>(
             partition->GetServiceWorkerContext());
     navigation_handle_->InitServiceWorkerHandle(service_worker_context);
   }
 
   if (IsSchemeSupportedForAppCache(common_params_.url)) {
-    navigation_handle_->InitAppCacheHandle(
-        static_cast<ChromeAppCacheService*>(partition->GetAppCacheService()));
+    RenderFrameHostImpl* render_frame_host =
+        frame_tree_node_->render_manager()->GetFrameHostForNavigation(*this);
+    if (render_frame_host->GetRenderViewHost()
+            ->GetWebkitPreferences()
+            .application_cache_enabled) {
+      navigation_handle_->InitAppCacheHandle(
+          static_cast<ChromeAppCacheService*>(partition->GetAppCacheService()));
+    }
   }
 
   // Mark the fetch_start (Navigation Timing API).
   request_params_.navigation_timing.fetch_start = base::TimeTicks::Now();
 
   // TODO(mkwst): This is incorrect. It ought to use the definition from
   // 'Document::firstPartyForCookies()' in Blink, which walks the ancestor tree
   // and verifies that all origins are PSL-matches (and special-cases extension
   // URLs).
   const GURL& first_party_for_cookies =
@@ skipping 98 matching lines @@
   DCHECK_EQ(request_params_.has_user_gesture, begin_params_.has_user_gesture);
 
   render_frame_host->CommitNavigation(response_.get(), std::move(body_),
                                       common_params_, request_params_,
                                       is_view_source_);
 
   frame_tree_node_->ResetNavigationRequest(true);
 }
 
 }  // namespace content